| Crugan Mudstone | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Lithology | |
| Primary | Mudstone |
| Location | |
| Region | England |
| Country | United Kingdom |
The Crugan Mudstone is a geologic formation in England. It preserves fossils dating back to the Ordovician period.
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 | This article related to the Ordovician period is a stub. You can help Wikipedia by expanding it. |
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